1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ki77a [65]
3 years ago
10

Which of the following is an example of a wave?

Physics
2 answers:
Pavlova-9 [17]3 years ago
6 0

Answer:

A plucked guitar string

Explanation:

When you pluck a guitar string it causes a sound wave which is also an example of a longitudinal wave.

qaws [65]3 years ago
3 0
The answer is A, it’s a sound wave
You might be interested in
In the picture at left. The launch height is 10m ball B mass 5kg has a launch velocity of 12 m/s and ball A mass 8 kg has a laun
Hitman42 [59]

Answer:

24

Explanation:

8 0
3 years ago
An airplane flies at 40 m/s at an altitude of 50 meters. The pilot drops a heavy package which falls to the ground. Where, appro
igor_vitrenko [27]

Answer:

128 m

Explanation:

From the question given above, the following data were obtained:

Horizontal velocity (u) = 40 m/s

Height (h) = 50 m

Acceleration due to gravity (g) = 9.8 m/s²

Horizontal distance (s) =?

Next, we shall determine the time taken for the package to get to the ground.

This can be obtained as follow:

Height (h) = 50 m

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) =?

h = ½gt²

50 = ½ × 9.8 × t²

50 = 4.9 × t²

Divide both side by 4.9

t² = 50 / 4.9

t² = 10.2

Take the square root of both side

t = √10.2

t = 3.2 s

Finally, we shall determine where the package lands by calculating the horizontal distance travelled by the package after being dropped from the plane. This can be obtained as follow:

Horizontal velocity (u) = 40 m/s

Time (t) = 3.2 s

Horizontal distance (s) =?

s = ut

s = 40 × 3.2

s = 128 m

Therefore, the package will land at 128 m relative to the plane

6 0
2 years ago
6. A satellite is orbiting Earth just above its surface. The centripetal force making the satellite follow a circular trajectory
Svetllana [295]

Answer:

Engular velocity: w=1,24*10^{-3}/s

Linear velocity: V=7905 m/s

The time it takes:

t=5060s=84min

Explanation:

The magnitude of the centripetal acceleration can be related to the angular velocity and radius as:

(1)a=r*w^{2}

Solving for w:

(2)w=\sqrt{\frac{a}{r} }

Replacing a=9,8m/s2 and r=6,375,000m:

(3)w=\sqrt{\frac{9,8m/s^{2}}{6375000m} }=1,24*10^{-3}/s

And the angular velocity relates to the linear velocity:

V=w*r=1,24*10^{-3}/s*6375000m=7905 m/s

The perimeter of the orbit is:

P=\pi *2*r=\pi *2*6375000m=40.05*10^{6}m

The time it takes:

t=\frac{P}{V} =\frac{40.05*10^{6}m}{7905 m/s}=5060s=84min

5 0
3 years ago
Sound produced when sections of a string vibrate separately are called
sergiy2304 [10]
Lungs vacoules on if those 2
5 0
3 years ago
A van moves with a constant speed of 20 miles per hour. How far can it travel in 3 1/2 hours
koban [17]
I think the answer would be 70
5 0
3 years ago
Other questions:
  • Acording to Newton’s second law of motion if a rigid body of unchanging mass is observed accelerating what must be happening
    7·2 answers
  • An ultrasonic ruler, such as the one discussed in Example 4 in Section 16.6, displays the distance between the ruler and an obje
    11·1 answer
  • What is the pressure of a 300 lb. object on a 100 sq. in. area?
    11·1 answer
  • A diagram of a closed circuit with power source on the left labeled 12 V, a resistor on the top labeled 10 Ohms, a resistor on t
    9·2 answers
  • Kinetic energy is _____.inversely proportional to mass and velocity directly proportional to mass and velocity directly proporti
    6·2 answers
  • Do you thin it is possible to have the benefits of the Agricultural and Industrial revolutions without the environmental costs?
    13·1 answer
  • If the net force acting on an object is zero, its inertia is also zero.<br> True or false
    15·1 answer
  • Khaled said the North star is special because it appears all over the world and its changes position.
    7·1 answer
  • 4. A lamp in a circuit has 4 Amps of current. If there is 32 12 of resistance
    6·1 answer
  • When a photon of light scatters off of a free stationary electron, the wavelength of the photon.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!